[Python-ideas] Shorthand syntax for get/set/delattr (was Re: Dict-like object with property access)
yoavglazner at gmail.com
Sun Feb 5 16:33:48 CET 2012
> >> In a real module, you'd probably want to be more thorough about
> emulating a __dict__ dictionary though by adding item() and keys() etc.
> > It's impossible in general.
> > class A:
> > def __getattr__(self, name):
> > return len(name)
> >>> class proxy:
> ... def __init__(self, orig):
> ... self._orig = orig
> ... def __getitem__(self, attr):
> ... return getattr(self._orig,attr)
> >>> class A:
> ... def __getattr__(self, name):
> ... return len(name)
> >>> a = A()
> >>> proxy(a)['hello']
> Extending the proxy class to include setting, deleting, and various
> corner cases, is left as an exercise for the reader :-)
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